CCSDS分包遥测在航天器通信中的设计及应用

天地通信链路是航天器与地面测控站之间的数据通道，数据的安全性对航天器非常重要。针对航天器天地通信链路长、易受干扰、数据量大的特点，提出了一种适于航天器天地通信用的CCSDS分包遥测策略。结合空间通信协议规范，设计了可用于航天器空间网络和地面环境通信的方法，并在天地通信链路中进行试验验证。结果表明，采用CCSDS分包遥测策略，通过空间通信网络下传的遥测数据可被地面正确的获取和解析。同时，通过模块化的软件设计，可方便地将CCSDS分包遥测策略移植于多种航天器型号中。

Design and Implementation of CCSDS Packet Telemetry in Spacecraft Communication

The communication link is the data channel between the spacecraft and the ground station, and data security is very important for spacecraft. Space communication of spacecraft has the characteristics of long link and large amount of data, which is easy to be interfered. A packet telemetry strategy of consultative committee for space data system is presented for spacecraft space communication, and combined with space communication protocol specification, a method for communication between spacecraft space network and ground station is designed. Through the experimental verification in the space communication link, this method can acquire and analyze the telemetry data from the space communication network. Besides, modular software design of the method can be easily transplanted in a variety of spacecraft models.